Synthesis Of Supramolecular Based On Re(?)and [Fe₂S₂] Photosensitive Structural Units And Study On The Adsorption And Separation Of Small Alkynes By Cd-MOF

As a newly emerging discipline in the 21st century,supramolecular chemistry has penetrated into many fields such as chemistry,biology,materials,medicine,and environmental science.In self-assembly strategy based,complexation driven metal-Design and synthesis of functional properties of the organic complex compound becomes a hot topic in the field of supramolecular chemistry.In this paper,ligands with ultraviolet photochromic properties and Re(?)rectangular supramolecular complexes were designed and their photophysical and electrochemical properties were studied;The adsorption and separation of alkyne molecular compounds by Cd-MOF with square pores was studied;And synthetic organic ligand containing iron and iron hydrogenase unit obtained through supramolecular self-assembly.?.Based on the new ligand L containing photochromic dithiophene ethylene,two new rectangular supramolecules {[(CO)₃Re(?-Cl)₂Re(CO)₃]₂(?-L)₂}and {[(CO)₃Re(?-OC₄H₉)₂Re-(CO)₃]₂(?-L)₂}.They all show different photochromic properties in solution and single crystal state.The photophysical and electrochemical properties of the complex can also be easily adjusted by rationally selecting the bridging ligands on the short sides of the rectangle.?.Containing the iron hexacarbonyl [Fe Fe]-hydrogenases and 4,4'-bipyridine and AgSbF₆two self-assembled supramolecular obtained,The single crystal structure was determined by ¹H NMR,IR spectroscopy,and X-ray single crystal diffraction.And preliminary photoelectrocatalysis was done on it.?.The three-dimensional porous Cd-MOF was used to study its adsorption properties for small alkynes under certain conditions,and the competitive adsorption properties of Cd-MOF for C₃H₄/C₃H₆?C₃H₄/C₂H₂ mixed gases were further studied.Through X-ray single crystal diffraction,the reversible adsorption-desorption properties of C₃H₄ molecules have been studied,which proves that this process is a transformation from single crystal to single crystal.In summary,We have studied the photoelectrochemical properties of supermolecules with photochromic properties;Synthesized ligands and supramolecules containing [Fe Fe]-hydrogenase;The adsorption performance of MOF for small alkynes molecules and the competitive adsorption properties for C₃H₄/C₃H₆,?C₃H₄/C₂H₂mixed gas.